Feeding device



E. W. SMITH.

' FEEDING DEVICE. APPLICATION FILED OCT-2, 1911.

1,358,793. Fig-5.

Patented Nov. 16, 1920.

51 P (D 18 2B O \TQ/ UNITED STATES PATENT OFFICE.

EDWIN W. SMITH, OE BEVERLY, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN-MENTS, TO UNITED SEGE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A.CORPORATION OF NEW JERSEY.

FEEDING DEVICE.

Specification of Letters Patent.

Patented Nov. 16, 1920.

To all whom it may concern:

Be it known that I, EDWIN W. SMITH, a citizen of the United States,residing at Beverly, in the county of Essex and fitate of Massachusetts,have invented certain Improvements in Feeding Devices, of which thefollowing description, in connection with the accompanying drawings, isa speci iication, like reference characters on the drawings indicatinglike parts in the several figures.

This invention relates to devices for feeding machines in which materialis delivered to an operating member. The invention is herein shown asembodied in a machine especially adapted for stamping in color from astrip of color-bearing material delivered across a die. The generalobject of the invention is to provide improved feeding means which willeliminate waste of the material delivered to the operating member.

In color-stamping machines, or as they areoften termed, embossingmachines, the metal, pigment, or the like which is to furnish the coloris commonly interposed between the die and the work in the form of acontinuous ribbon. Ina well-known type of apparatus this ribbon is takenfrom a source of suppl at the rear of the die, passed across and oversaid die, and brought back to feed or take-up rolls situated adjacent tothe suppl roll. It will be seen that in such an arran ment, when a freshribbon ofr mrml is started there will be an end portion equal in lengthto the distance from the workin face of the die to the feed rolls whichwill not recelve the impressions and will be unused.

an important feature of the invention consists inproviding, in additionto the normal feeding means, auxiliary feeding means constructed andarranged to effect a preliminary presentat on of m terial to theoperating member. Preferably this auxiliary feeding means operates topresent material to the operatin member until a sufficient length ofmaterial has been drawn from its source of supply to reach the normalfeeding means, which, as shown, is located on the opposite side of theoperating member from the source of ma erial supply. In the illustratedstamping machine, the auxiliary feeding means draws the color ribbonacross the stamping die until a used end long enough to reach to thefeed rolls has been produced, after which the usual feed rolls operateto draw the material across the die in the ordinary manner.

With the above object in view I furnish initial feeding means, which, asapplied to a stamping machine, cooperates with the material at theopposite side of the die from the supply roll and draws off saidmaterial as the machine operates until a used end results long enough toreach to the feed rolls, after which feeding may continue in the normalmanner. I

A particular organization embodying this and other features of theinvention 15 illustrated in the accompanying drawing, in-which Figure 1is a side elevation of a portion of a stamping or embossing machinehaving one form of my invention applied thereto;

Fig. 2 is an enlarged detail in side elevation of the casing of myinitial feeding devics, the head of said casing being removed, anc

Fig. 3 is a central, horizontal section through the casing.

The numeral 10 designates a portion of the frame of a stamping machineupon which is mounted to be reciprocated by mechanism not illustrated,the head 12 carrying the die 14 to operate upon work supported upon thetable 16. At the rear of the die is a supporting roll 17 adapted toreceive a coil R of ribbon consisting of metal leaf, paper charged withpigment, or other source of color. From the supply roll the ribbonpasses between guide members 1818 across the table beneath the die, andthen in the normal operation ofthe machine about a shield 20 carriedupon the head 12 and rearwardly to feed rolls, one of which is seen at22, these rolls being situated above and adjacent to the supply roll. Asalready pointed out, when a fresh coil of ribbon is applied to the ma nethere will be a portion extending from the forward impression surface ofthe the about the shield and back to the feed rolls which will not beacted upon by the die. his unused section. especially when the color mterial is such a sub'tince as gold leaf, will cause an appreciable loss.To avoid this the auxiliary feeding attachment shown at A is employed.Mounted on the frame of the machine above the supply and feed rolls isacasing 23 preferably reinovably attached to the arm carrying the head12. Within the casing beneath a separable cover 24 is a wheel 26rotatable about a stud 28 secured at the center of the casing headopposite the head 24L. One side of the wheel is recessed to receive aspiral spring 30, the inner end of which spring is fixed, to the squaredhead 32 of the stud 28 by a screw 34. The outer end of the spring isheld to the wall of the wheel recess by a screw 36 threaded through theperiphery of the wheel. Thecircumference of the wheel has a groove 38 toreceive a cord or other flexible member l0 secured in an oaening -12.This. cord passes through an opening i-l in the outer wall of the drumover the head of the machine, it being guided by an arm 46 preferablyformed integral with the casing, said arm. having a depression 18 at itsouter extremity to receive the cord and in termediatehorns 50 betweenwhich the cord passes. At the outer or free end of the cord is attacheda clip 51 adapted to engage the end of the ribbon. R.

In assembling the initial feeding device the spring 30 is put undersufficient tension to hold the clip, when not in engagement with theribbon, against the horns 50 which thus serve as a stop therefor. Whenthe op erator applies a new coil of ribbon to the roll 16, he draws theend of said ribbon between the guide members. 18, across the table andover the end of the shield 20, at which point he secures to it the clip51, which is drawn down from its normal position against the horns 50.The tensionput upon the cord 40 by the spring 30 is not enough in itselfto uncoil the ribbon from the supply roll, but as. the head.reciprocates in the operation of the machine the frictionalengagement ofthe shield with the ribbon draws a suflicient amount from the roll topresent a fresh surface to. the die. As the head rises, the slack istaken up by tie tension of the spring 30 acting through the cord and in.this manner a constant feed of the ribbon is maintained without attention upon the part of the operator. When a sur'iicient length has beendrawn off to reach over the shield to the rolls 22, the operator maydisengage the clip 51 and start the normal feeding action of themachine. In this way the entire ribbon, except an insignificant portionbetween the die and the point of attachment of the clip at the end ofthe shield, is utilized.

Having thus described my invention, what I claim as new and desire tosecure by Letv ters Patent of the United States is:

V 1. In a machine of the class described, a source of material'supply,means for 0perating upon the mater al, feeding means for normallydrawing material from the source of supply and presenting it to saidoperating means, and initial feeding means for adrancing the materialtothe operating means until a suflicient length of material has been drawnoff to reach the normal feeding means.

i l 2. In a machine of the class described, a source of material supply,an operating member, feeding means for advancing material from thesource and presenting it to the operating member, and auxiliary powermeans for effecting an initial presentation of the material to theoperating member.

3. In a machine of the class described, a source of material supply, anoperating member, feeding means for advancing material from the sourceand presenting it to the operating member, and auxiliary feeding meansvfor presenting material to the ope ating member n i a su f cie eng ofmaterial has been drawn off to reach the first-named feeding means.

4. In a machine ofthe class described, a source of supply of material,means for operating upon the material, means for normally feeding thematerial from the source across the operating means and engaging saidmaterial after the operating means has acted upon it, and means forinitially feeding the material relatively to the operating means until alength su'llicient to reach the normal feeding means has been taken fromthe source. 2

In a machine of the class described, a source of supply of material,means for operating upon the material, means for normally feedingthematerial from the source across the operating means, and means forinitially feeding the material relatively to the operating means until aused end results long enough to reach the normal feeding 6. In a machineof the class described, a source of supply of material, means foroperating upon the material, means for normally feeding the materialfrom the source across the operating means and engaging said materialafter the operating means has acted upon it, and means including amaterial-engaging member and atension member connected therewith forinitially feeding the material relatively" to the operating means untila length sufficient to reach the normal feeding means has'been takenfrom the source.

7. In a machine of the class described, a source of supply of material,means for operating upon the material, means fornormally feeding thematerial from the source across the operating means and engaging saidmaterial after the operating means has raged upon it. and means includng a cl p for engaging the material, a flexible member connectedtherewith and a means, for placing the flexible member under tension forinitially feeding thematerial relatively to the operating means until alength sufficient to reach the normal feeding means has been taken fromthe source.

8. In a machine of the class described, a source of supply of material,means for operating upon the material, means for normally feeding thematerial from the source across the operating means and engaging saidmaterial after the operating means has acted upon it, means for engagingthe material, a flexible member connected therewith, and a spring forplacing the flexible member under tension for initially feeding thematerial relatively to the operating means until a length sufficient toreach the normal feeding means has been taken from the source.

9. In a machine of the class described, asource of supply of material,movable means for operating upon the material, means for normallyfeeding the material from the source across the operating means to movetherewith, said normal feeding means engaging the material after theoperating means has acted upon it, and initial feeding means including amaterial-engaging member and a tension member connecting the engagingmember to a part fixed relatively to the operating means.

10. In a machine of the class described, the combination with a frame,of a supply roll for material, means for operating upon the material, anengaging member for the material, and yieldabl connections between theengaging member and frame.

11. In a machine of the class described, the combination with a frame,of a supply roll for material, means for operating upon the material, aspring carried by the frame, and means for connecting the spring andmaterial.

12. In a machine of the class described, the combination, with a frame,of a supply roll for material, means for operating upon the material, aspiral spring having one end fixed to the frame, a flexible memberconnected to the opposite end of the spring, and a clip secured to theflexible member and being adapted to engage the material.

13. In a machine of the class d scribed, the combination with a frame,of a supply roll for material, means for operating upon the material,normal feeding means for drawing material from the supply roll acrossthe operating member, and auxiliary feeding means including an engagingmember for the material and yieldable connections between the engagingmember and frame.

14. in a machine of the class described, a source of material supply,means for operating upon the material, feeding means for normallydrawing material from the source of supply for cooperation with theoperating means, and initial feeding means independent of the normalfeeding means for the material before it reaches said normal feedingmeans.

15. In a machine of the class described, a source of material supply,means for operating upon the material, feeding means for normallydrawing material from the source of supply for cooperation with theoperating means, and initial feeding means for engagement with thematerial after it has been brought into cooperation with the operatingmeans and acting in a direction away from the normal feeding means.

16. In a machine of the class described, a supply roll for the material,means for operating upon the material, feeding means for the material,and auxiliary feeding means for engagement with the material at theopposite side of the operating means from the supply roll.

17. In a machine of the class described, a supply roll for the material,means for operating upon the material, feeding means engaging thematerial after it passes across the operating means and being situatedat the same side of the operating means as the supply roll, and feedingmeans for engagement with the material at the opposite side of theoperating means from the supply roll.

18. In a stamping machine, an operating member, a supply roll for acolor ribbon which is to cooperate with the operating member, feed rollssituated adjacent to the supply roll for engagement with the ribbon, anda flexible member for engagement with the ribbon at the opposite side ofthe operating member from the supply roll.

19. In a stamping machine, an operating member, a supply roll for acolor ribbon which is to cooperate with the operating member, feed rollssituated adjacent to the supply roll for engagement with the ribbon, acasing mounted upon the machine above the die, a spring in the casing,and a flexible member connected with the spring and having means forengaging the ribbon.

20. In a stamping machine, an operating member, a supply roll for acolor ribbon which is to cooperate with the operating member, feed rollssituated adjacent to the supply roll for engagement with the ribbon, acasing mounted upon the machine above the operating member, a spring inthe casing, an arm extending from the easing over the operating member,member connected to the spring and being guided by the arm, and a clipattached to the free end of the flexible member and being adapted forengagement with the ribbon.

In testimony whereof I name to this specification.

EDW IN W. SMITH.

have signed my a flexible It is hereby certified that in Letters PatentNo. 1,358,793, granted November 16, 1920, upon the application of EdwinW. Smith, of Beverly, Massachusetts, for an improvement in FeedingDevices, an error appears in the printed specification requiringcorrection as follows: Page 3, line 111, claim 19, for the word die readoperating member; and that the said Letters Patent should be read withthis correction therein that the same may conform to the record of thecase in the Patent Office.

Signed and sealed this 22d day of March, A. D., 1921.

[SEAL] M. H. COULSTON,

Commissioner of Patents.

Correction in Letters Patent No. 1,358,793. i

